Standard drilling rig



Dec. 7 1926.

E. F. TRAUGOTT STANDARD DRILLING RIG Filed July .20, 1925 Inven for,

Patented Dec. 7, 1926.

UNITED STATES moans PATENT oFFieE.

EDWARD r. TRAUGOTT, or ENID, OKLAHOMA, nssrenoa or one-THIRD ro senses w.

onnss, or PERRY, OKLAHOMA.

STANDARD DRILLING RIG.

Application filed July 20, 1925. Serial No. 44,755.

This invention relates to an attachment for standard drilling rigs and more particularly to an attachment providing means employing the operating engine of the rig in joining or separating sectlons-of a strlng of easing, moving casing, tools or the like toward and away from the rig and for spooling lines employed at the rig.

In the ordinary standard drilling mg, a structure is provided including what are known as calf and bull wheels and an engine for driving these wheels and for likewise operating a walking beam by means of which the tool string is reciprocated 1n the well. During the process of drilling a well,

the bull and calf-wheels are continually in use andtheir use as a utility drum is accordingly impossible. The provision of some utility drum is extremely desirable; in that there are a number of operations wh ch must be performed, requiring a pulling drum but these operations are ordinarlly not expensive enough to warrant the addition of a regular reeling drum to the derr ck. It is accordingly an object of thls invent on to provide an attachment for the derrick which may be readily attached to a normal part of the derrick and which may be employed as a reeling drum or to operate a reel for supporting cable, rope or the like which has either outlived its use on the derrick or the necessity for which is passed.

A still further object of the inventlon is to provide a device of this character which may be employed, if found desirable, 1n rotating a casing section to joln the same to the casing string or to separate the same therefrom.

These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein Figure 1 is a detail View showing an attachment constructed in accordance with my invention applied to the calf-wheel post of a drilling rig;

Figure 2 is a view showing the manner in which my device is employed for operating a reeling drum; and

Figure 3 is an enlarged sectional view through the spool and friction pulley, showing the manner of connecting the same.

Referring now more particularly to the drawings, P designates a calf-wheel post for supporting one end of the usual calfwheel 0. While this post has been selected for the purpose of illustration, it will hereinafter be obvious that any other post conveniently located upon the derrick might be employed or if necessity arise, a false post provided, for a purpose hereinafter de scribed. It is, however, preferred that a post forming a normal part of the derrick structure, such as the calfewheel post P be employed.

In accordance wit-h my invention, I provide a bracket B having a supporting bearing S fora shaft 2. If desired, this shaft may have a further supporting bearing S which may be secured directly to one face of the post P while the bracket B is secured to a side face thereof, as disclosed. The shaft 2 has at opposite ends thereof cat-head spools l and 4, hereinafter to be more particularly described and this shaft is further provided with a sprocket or the like, indicated at 3, and connected by a power transmission element such as a sprocket chain 6 to the source of power of the derrick, not herein shown. If desired, this sprocket wheel may have associated therewith a clutch (not shown) whereby it may be connected to and disconnected from the source of power. Each cat-head spool 1 and l is preferably provided with means for attaching thereto a grooved pulley 5. In the present instance, the cat-head spool has been illustrated as having a socket 7 receiving an extension 8 formed on the hub of the grooved pulley. Through the hub of this grooved pulley is directed a headed securing element 9 which is threaded into the body of the cat-head spool, as at 10. One or both pulleys 1 and 4: may be so constructed.

In the use of the device, assuming it is desired to move an article on the derrick, a line L is passed about one of the cat-head spools and given several turns thereon and the opposite end of this line is attached to the object which is to be moved to the derrick. When the shaft 2 is driven, by maintaining a strain upon the free end of the line L, the friction placed against this line by the cat'head spool will cause the article to be drawn toward the derrick and this friction, at any time, relieved by releasing the end of the line. If it is desired to rotate a casing section either to connect or disconnect the same from a string, the line L, after heing passed about the cat-head spool in the manner above described, is given several turns about the casing section which is to be rotated and opposite ends of this line are held taut so that as the line passes about the casingection, it will act to rotate the same in a direction depending upon the manner in which the line has been wound upon the casing section. when it is desired to employ the device for spooling, the spooling reel R is so moved that the perimeter of the reel flange l engages in the groove 5; ol' the grooved puller 5. The line L is then taebed to the rec and given several turns about the cathead spool iu :-uch manner that when friction is applied to this line. it will tend to draw the reel toward the cathcad spool. Thus thi line ma he cm ploycd to draw ll e reel flange F into trictional engagei'uent with the grooved pulle 5 and thereby cause rotation oi the reel drum.

t will be obvious that in addition to the functions above described. the structure recited is capable of use in many other wayi-i. It will also be obvious that an attzu-lunent of this character may be readily and economically applied to either new derricks or derricks now standing and in need of such an attachment.

Since the structure of the attachment i obviously capable of a e rtain rang-e o change and modification without matcriall; departing-gtron. the pirit of the invention. I do not limit n'iysel-t' to the specific structure hireinbclore set forth except as horn inaltcr claimed.

1 claim 1. An attachment for derricks comprising a bracket adapted to be secured to a post of the derrick and having; a bearing, a shaft rotatable in said bearing and having means whereby it may be connected with the source of power of the derrick to be rotated thereby, a cat-head spool attached to the shaft and means for attaching a friction pulley to the cat-head spool for rotation therewith, said pulley being adapted for en. gagement with the end flange of a reeling drum.

2. An attachment for derricks comprising a bracket adapted to be secured to a post of the derrick and having a bearing, a shaft rotatable in said bearing and having means whereby it may be connected with the source of power of the derrick to be rotated thereby. a cat-head spool attached to the shaft and means for attaching a friction pulley to the cat-head spool for rotation therewith, said friction pulley having a grooved perimeter adapted to receive the end flange of a reeling drum.

3. An attachment tor derricks cou'iprising' a bracket adapted to be secured to a post or the derrick and having a bearing, a shaft rotatable in said bearing and having means whereby it may be connected with the source of power of the derrick to be rotated thereby, a cat-head spool attached to the shaft, means for attaching a "friction pulle to the cat-head spool for rotation therewith comprising a hub "for the friction pulley extending to one side thereof, the cat-head having an axial socket formed in its end to receive the hub and an axial securing element directed through the hub and having threaded engagement with the cat-head.

Witness my hand at Perry, Oklahoman this 30th day of October, A. D. 192%.

E. F. TRAUGOTT. 

